The subtropical highland variety of the oceanic climate exists in elevated portions of the world that are within either the tropics or subtropics, though it is typically found in mountainous locations in some tropical countries. Despite the latitude, the higher altitudes of these regions mean that the climate tends to share characteristics with oceanic climates, though it also tends to experience noticeably drier weather during the "low-sun" season. In locations outside the tropics, other than the drying trend in the winter, subtropical highland climates tend to be essentially identical to an oceanic climate, with mild summers and noticeably cooler winters, plus, in some instances, some snowfall. In the tropics, a subtropical highland climate tends to feature spring-like weather year-round. Temperatures here remain relatively constant throughout the year and snowfall is seldom seen.Without the elevation, many of these regions would likely feature either tropical or humid subtropical climates.

The average temperature for the year in Bethlehem is 59.0°F (15°C). The warmest month, on average, is January with an average temperature of 70.0°F (21.1°C). The coolest month on average is June, with an average temperature of 47.0°F (8.3°C).

The highest recorded temperature in Bethlehem is 95.0°F (35°C), which was recorded in January. The lowest recorded temperature in Bethlehem is 14.0°F (-10°C), which was recorded in July.

There are an average of 49.0 days of precipitation, with the most precipitation occurring in December with 7.0 days and the least precipitation occurring in July with 1.0 days.

In terms of liquid precipitation, there are an average of 48.0 days of rain, with the most rain occurring in December with 7.0 days of rain, and the least rain occurring in July with 1.0 days of rain.